[
  {
    "id": "rome-territorial-boundaries",
    "title": "Roman and neighboring polity boundaries",
    "path": "/domestication/data/ancient-polities.geojson",
    "schema": "boundary",
    "evidence_type": "historical_reconstruction",
    "source_keys": ["CLIOPATRIA"],
    "time_resolution": "dated intervals rendered on an annual timeline",
    "notes": "Each geometry persists from FromYear through ToYear. Annual playback is display interpolation, not an annual observation. Geometry is simplified for web display."
  },
  {
    "id": "rome-military-capacity",
    "title": "Published and explicit Roman force estimates",
    "path": "/domestication/data/roman-military-capacity.csv",
    "schema": "modeled_series",
    "evidence_type": "historical_model",
    "source_key_field": "source_keys",
    "time_resolution": "seven irregular, non-interpolated estimates in four separately defined segments",
    "notes": "Only an ancient reported deployment, one explicit unit model, and published modern estimates remain. Lines connect points only when polity, scope, and estimation family are comparable. No western fifth-century total is plotted because the current evidence audit did not find a defensible published establishment estimate."
  },
  {
    "id": "rival-campaign-forces",
    "title": "Reported and reconstructed rival campaign forces",
    "path": "/domestication/data/comparison-forces.csv",
    "schema": "modeled_series",
    "evidence_type": "historical_observations",
    "source_key_field": "source_keys",
    "time_resolution": "dated campaign observations only",
    "notes": "Each row is one reported, reconstructed, or modern-minimum campaign force. The dataset deliberately contains no interpolated state-capacity series."
  },
  {
    "id": "republican-equipment-index",
    "title": "Republican Roman worked-metal comparison",
    "path": "/domestication/data/equipment-comparison.csv",
    "schema": "modeled_series",
    "evidence_type": "published_relative_model",
    "source_keys": ["ACOU_METAL"],
    "time_resolution": "third and second centuries BCE only",
    "notes": "Relative index with the nearest comparator normalized to 100. The public source supports the 25% comparison but not absolute kilograms for every army."
  },
  {
    "id": "natural-earth-basemap",
    "title": "Physical and geographic basemap",
    "paths": ["/domestication/data/land.topojson", "/domestication/data/rivers.topojson", "/domestication/data/borders.topojson"],
    "schema": "boundary",
    "evidence_type": "modern_geographic_context",
    "source_keys": ["NATURAL_EARTH"],
    "time_resolution": "not historical",
    "notes": "Modern coastlines, rivers, and borders provide orientation only and are not evidence for ancient political boundaries."
  },
  {
    "id": "roman-imperial-budget",
    "title": "Reconstructed Roman imperial budget scenarios",
    "path": "/domestication/data/roman-imperial-budget.csv",
    "schema": "modeled_series",
    "evidence_type": "published_historical_model",
    "source_key_field": "source_keys",
    "time_resolution": "two snapshots, c. 150 and c. 215 CE, each with low and high scenarios",
    "notes": "Duncan-Jones's central-expenditure reconstruction as reproduced by Mattingly. Categories sum within each published scenario. Nominal totals across the two dates are not presented as real growth."
  },
  {
    "id": "roman-fiscal-observations",
    "title": "Roman fiscal rates, transfers, grain, and legionary pay",
    "path": "/domestication/data/roman-fiscal-observations.csv",
    "schema": "observation",
    "evidence_type": "mixed_source_observations",
    "source_key_field": "source_keys",
    "time_resolution": "irregular dated observations from 123 BCE to 197 CE",
    "notes": "Each rate retains its own payer, base, geography, destination, and unit. The values are not combined into an empire-wide tax rate or a purchasing-power series."
  },
  {
    "id": "western-roman-collapse-events",
    "title": "Selected western Roman fiscal-political shocks and recoveries",
    "path": "/domestication/data/western-roman-collapse-events.csv",
    "schema": "observation",
    "evidence_type": "historical_chronology",
    "source_key_field": "source_keys",
    "time_resolution": "twelve selected dated events from 395 to 476 CE",
    "notes": "A selective chronology of interacting political, military, territorial, and fiscal changes. Event markers are not causal scores and do not imply a continuous decline."
  },
  {
    "id": "africa-fiscal-equivalents",
    "title": "Heather's African revenue-loss military equivalents",
    "path": "/domestication/data/africa-fiscal-equivalents.csv",
    "schema": "modeled_series",
    "evidence_type": "published_historical_model",
    "source_key_field": "source_keys",
    "time_resolution": "two regional components after the fifth-century African losses",
    "notes": "Published fiscal equivalents using Elton's annual maintenance costs. Values are not observed troop reductions or a western army census; the Proconsularis–Byzacena cavalry value is a lower bound."
  }
]